mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
alteredq
ca05c86fc5
I knew for loops iterating over properties were slower than numerical for loops but I didn't realize how bad it was. Gained about 10 fps in performance test, and that was for for loop iterating over single property. Also fixed broken examples with postprocessing.
638 lines
15 KiB
HTML
638 lines
15 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en">
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<head>
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<title>three.js webgl - geometry - text</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"/>
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<style type="text/css">
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body {
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font-family: Monospace;
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background-color: #000;
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color: #fff;
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margin: 0px;
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overflow: hidden;
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}
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#info {
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position: absolute;
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top: 10px;
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width: 100%;
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text-align: center;
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z-index: 100;
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display:block;
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}
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#info a, .button { color: #f00; font-weight: bold; text-decoration: underline; cursor: pointer }
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</style>
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</head>
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<body>
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<div id="info">
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<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - procedural 3D text by <a href="http://www.lab4games.net/zz85/blog" target="_blank">zz85</a> & alteredq
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(fonts from <a href="http://typeface.neocracy.org/">typeface.js</a> and <a href="http://en.wikipedia.org/wiki/Droid_%28font%29">Droid</a>)
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<br/>type to enter new text, drag to spin the text
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<br/><span class="button" id="color">change color</span>,
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<span class="button" id="font">change font</span>,
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<span class="button" id="weight">change weight</span>,
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<span class="button" id="bevel">change bevel</span>,
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<span class="button" id="bend">bend</span>,
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<span class="button" id="postprocessing">change postprocessing</span>,
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<a id="permalink" href="#">permalink</a>
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</div>
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<script type="text/javascript" src="../build/Three.js"></script>
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<script type="text/javascript" src="js/ShaderExtras.js"></script>
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<script type="text/javascript" src="js/postprocessing/EffectComposer.js"></script>
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<script type="text/javascript" src="js/postprocessing/RenderPass.js"></script>
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<script type="text/javascript" src="js/postprocessing/ShaderPass.js"></script>
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<script type="text/javascript" src="js/postprocessing/MaskPass.js"></script>
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<script type="text/javascript" src="js/postprocessing/BloomPass.js"></script>
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<script type="text/javascript" src="js/postprocessing/FilmPass.js"></script>
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<script type="text/javascript" src="js/Detector.js"></script>
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<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
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<script type="text/javascript" src="js/Stats.js"></script>
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<!-- load the font files -->
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<script type="text/javascript" src="fonts/gentilis_bold.typeface.js"></script>
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<script type="text/javascript" src="fonts/gentilis_regular.typeface.js"></script>
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<script type="text/javascript" src="fonts/optimer_bold.typeface.js"></script>
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<script type="text/javascript" src="fonts/optimer_regular.typeface.js"></script>
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<script type="text/javascript" src="fonts/helvetiker_bold.typeface.js"></script>
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<script type="text/javascript" src="fonts/helvetiker_regular.typeface.js"></script>
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<script type="text/javascript" src="fonts/droid/droid_sans_regular.typeface.js"></script>
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<script type="text/javascript" src="fonts/droid/droid_sans_bold.typeface.js"></script>
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<script type="text/javascript" src="fonts/droid/droid_serif_regular.typeface.js"></script>
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<script type="text/javascript" src="fonts/droid/droid_serif_bold.typeface.js"></script>
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<!-- todo async loader for fonts -->
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<script type="text/javascript">
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if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
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var container, stats, permalink, hex, color;
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var camera, scene, renderer;
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var composer;
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var textMesh1, textMesh2, textGeo, faceMaterial, textMaterialFront, textMaterialSide, parent;
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var firstLetter = true;
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var text = "three.js",
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height = 20,
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size = 70,
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hover = 30,
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curveSegments = 4,
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bevelThickness = 2,
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bevelSize = 1.5,
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bevelSegments = 3,
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bevelEnabled = true,
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bend = true,
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font = "optimer", // helvetiker, optimer, gentilis, droid sans, droid serif
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weight = "bold", // normal bold
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style = "normal"; // normal italic
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var mirror = true;
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var fontMap = {
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"helvetiker" : 0,
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"optimer" : 1,
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"gentilis" : 2,
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"droid sans" : 3,
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"droid serif" : 4
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};
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var weightMap = {
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"normal" : 0,
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"bold" : 1
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}
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var reverseFontMap = {};
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var reverseWeightMap = {};
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for ( var i in fontMap ) reverseFontMap[ fontMap[i] ] = i;
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for ( var i in weightMap ) reverseWeightMap[ weightMap[i] ] = i;
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var targetRotation = 0;
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var targetRotationOnMouseDown = 0;
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var mouseX = 0;
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var mouseXOnMouseDown = 0;
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var windowHalfX = window.innerWidth / 2;
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var windowHalfY = window.innerHeight / 2;
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var postprocessing = { enabled : false };
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var glow = 0.9;
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init();
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animate();
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function capitalize( txt ) {
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return txt.substring( 0, 1 ).toUpperCase() + txt.substring( 1 );
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}
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function decimalToHex( d ) {
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var hex = Number( d ).toString( 16 );
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hex = "000000".substr( 0, 6 - hex.length ) + hex;
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return hex.toUpperCase();
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}
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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permalink = document.getElementById( "permalink" );
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// CAMERA
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camera = new THREE.Camera( 30, window.innerWidth / window.innerHeight, 1, 1500 );
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camera.position.y = 400;
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camera.position.z = 700;
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camera.target.position.y = 100;
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// SCENE
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scene = new THREE.Scene();
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scene.fog = new THREE.Fog( 0x000000, 250, 1400 );
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var dirLight = new THREE.DirectionalLight( 0xffffff, 0.125 );
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dirLight.position.set( 0, 0, 1 );
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dirLight.position.normalize();
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scene.addLight( dirLight );
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var pointLight = new THREE.PointLight( 0xffffff, 1.5 );
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pointLight.position.set( 0, 100, 90 );
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scene.addLight( pointLight );
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//text = capitalize( font ) + " " + capitalize( weight );
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//text = "abcdefghijklmnopqrstuvwxyz0123456789";
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//text = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
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// Get text from hash
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var hash = document.location.hash.substr( 1 );
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if ( hash.length !== 0 ) {
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var colorhash = hash.substring( 0, 6 );
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var fonthash = hash.substring( 6, 7 );
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var weighthash = hash.substring( 7, 8 );
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var pphash = hash.substring( 8, 9 );
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var bevelhash = hash.substring( 9, 10 );
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var bendhash = hash.substring( 10, 11 );
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var texthash = hash.substring( 12 );
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hex = colorhash;
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pointLight.color.setHex( parseInt( colorhash, 16 ) );
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font = reverseFontMap[ parseInt( fonthash ) ];
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weight = reverseWeightMap[ parseInt( weighthash ) ];
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postprocessing.enabled = parseInt( pphash );
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bevelEnabled = parseInt( bevelhash );
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bend = parseInt( bendhash );
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text = decodeURI( texthash );
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updatePermalink();
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} else {
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pointLight.color.setHSV( Math.random(), 0.95, 0.85 );
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hex = decimalToHex( pointLight.color.getHex() );
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}
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faceMaterial = new THREE.MeshFaceMaterial();
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textMaterialFront = new THREE.MeshPhongMaterial( { color: 0xffffff, shading: THREE.FlatShading } );
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textMaterialSide = new THREE.MeshPhongMaterial( { color: 0xffffff, shading: THREE.SmoothShading } );
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parent = new THREE.Object3D();
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parent.position.y = 100;
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scene.addChild( parent );
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createText();
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var plane = new THREE.Mesh( new THREE.PlaneGeometry( 10000, 10000 ), new THREE.MeshBasicMaterial( { color: 0xffffff, opacity: 0.5, transparent: true } ) );
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plane.rotation.x = -1.57;
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plane.position.y = 100;
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scene.addChild( plane );
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// RENDERER
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setClearColor( scene.fog.color, 1 );
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container.appendChild( renderer.domElement );
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// STATS
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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//container.appendChild( stats.domElement );
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// EVENTS
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document.addEventListener( 'mousedown', onDocumentMouseDown, false );
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document.addEventListener( 'touchstart', onDocumentTouchStart, false );
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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document.addEventListener( 'keypress', onDocumentKeyPress, false );
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document.addEventListener( 'keydown', onDocumentKeyDown, false );
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document.getElementById( "color" ).addEventListener( 'click', function() {
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pointLight.color.setHSV( Math.random(), 0.95, 0.85 );
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hex = decimalToHex( pointLight.color.getHex() );
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updatePermalink();
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}, false );
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document.getElementById( "font" ).addEventListener( 'click', function() {
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if ( font == "helvetiker" ) {
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font = "optimer";
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} else if ( font == "optimer" ) {
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font = "gentilis";
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} else if ( font == "gentilis" ) {
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font = "droid sans";
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} else if ( font == "droid sans" ) {
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font = "droid serif";
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} else {
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font = "helvetiker";
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}
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refreshText();
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}, false );
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document.getElementById( "weight" ).addEventListener( 'click', function() {
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if ( weight == "bold" ) {
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weight = "normal";
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} else {
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weight = "bold";
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}
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refreshText();
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}, false );
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document.getElementById( "bevel" ).addEventListener( 'click', function() {
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bevelEnabled = !bevelEnabled;
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refreshText();
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}, false );
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document.getElementById( "bend" ).addEventListener( 'click', function() {
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bend = !bend;
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refreshText();
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}, false );
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document.getElementById( "postprocessing" ).addEventListener( 'click', function() {
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postprocessing.enabled = !postprocessing.enabled;
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updatePermalink();
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}, false );
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// POSTPROCESSING
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renderer.autoClear = false;
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var renderModel = new THREE.RenderPass( scene, camera );
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var effectBloom = new THREE.BloomPass( 0.25 );
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var effectFilm = new THREE.FilmPass( 0.5, 0.125, 2048, false );
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effectFilm.renderToScreen = true;
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composer = new THREE.EffectComposer( renderer );
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composer.addPass( renderModel );
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composer.addPass( effectBloom );
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composer.addPass( effectFilm );
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}
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//
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function boolToNum( b ) {
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return b ? 1 : 0;
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}
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function updatePermalink() {
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var link = hex + fontMap[ font ] + weightMap[ weight ] + boolToNum( postprocessing.enabled ) + boolToNum( bevelEnabled )
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+ boolToNum( bend ) + "#" + encodeURI( text );
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permalink.href = "#" + link;
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window.location.hash = link;
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}
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function onDocumentKeyDown( event ) {
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if ( firstLetter ) {
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firstLetter = false;
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text = "";
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}
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var keyCode = event.keyCode;
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// backspace
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if ( keyCode == 8 ) {
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event.preventDefault();
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text = text.substring( 0, text.length - 1 );
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refreshText();
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return false;
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}
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}
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function onDocumentKeyPress( event ) {
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var keyCode = event.which;
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// backspace
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if ( keyCode == 8 ) {
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event.preventDefault();
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} else {
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var ch = String.fromCharCode( keyCode );
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text += ch;
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refreshText();
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}
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}
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function createText() {
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textGeo = new THREE.TextGeometry( text, {
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size: size,
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height: height,
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curveSegments: curveSegments,
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font: font,
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weight: weight,
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style: style,
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bevelThickness: bevelThickness,
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bevelSize: bevelSize,
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bevelEnabled: bevelEnabled,
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bend: bend,
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material: textMaterialFront,
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extrudeMaterial: textMaterialSide
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});
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textGeo.computeBoundingBox();
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textGeo.computeVertexNormals();
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// "fix" side normals by removing z-component of normals for side faces
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// (this doesn't work well for beveled geometry as then we lose nice curvature around z-axis)
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if ( ! bevelEnabled ) {
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var triangleAreaHeuristics = 0.1 * ( height * size );
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for ( var i = 0; i < textGeo.faces.length; i ++ ) {
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var face = textGeo.faces[ i ];
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if ( face.materials[ 0 ].id == textMaterialSide.id ) {
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for ( var j = 0; j < face.vertexNormals.length; j ++ ) {
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face.vertexNormals[ j ].z = 0;
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face.vertexNormals[ j ].normalize();
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}
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var va = textGeo.vertices[ face.a ].position;
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var vb = textGeo.vertices[ face.b ].position;
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var vc = textGeo.vertices[ face.c ].position;
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var s = THREE.GeometryUtils.triangleArea( va, vb, vc );
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if ( s > triangleAreaHeuristics ) {
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for ( var j = 0; j < face.vertexNormals.length; j ++ ) {
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face.vertexNormals[ j ].copy( face.normal );
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}
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}
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}
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}
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}
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var centerOffset = -0.5 * ( textGeo.boundingBox.x[ 1 ] - textGeo.boundingBox.x[ 0 ] );
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textMesh1 = new THREE.Mesh( textGeo, faceMaterial );
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textMesh1.position.x = centerOffset;
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textMesh1.position.y = hover;
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textMesh1.position.z = 0;
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textMesh1.rotation.x = 0;
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textMesh1.rotation.y = Math.PI * 2;
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parent.addChild( textMesh1 );
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if ( mirror ) {
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textMesh2 = new THREE.Mesh( textGeo, faceMaterial );
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textMesh2.position.x = centerOffset;
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textMesh2.position.y = -hover;
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textMesh2.position.z = height;
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textMesh2.rotation.x = Math.PI;
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textMesh2.rotation.y = Math.PI * 2;
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parent.addChild( textMesh2 );
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}
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}
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function refreshText() {
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updatePermalink();
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scene.removeChild( textMesh1 );
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if ( mirror ) scene.removeChild( textMesh2 );
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if ( !text ) return;
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createText();
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}
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function onDocumentMouseDown( event ) {
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event.preventDefault();
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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document.addEventListener( 'mouseup', onDocumentMouseUp, false );
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document.addEventListener( 'mouseout', onDocumentMouseOut, false );
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mouseXOnMouseDown = event.clientX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
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}
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function onDocumentMouseMove( event ) {
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mouseX = event.clientX - windowHalfX;
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targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
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}
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function onDocumentMouseUp( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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}
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function onDocumentMouseOut( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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}
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function onDocumentTouchStart( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onDocumentTouchMove( event ) {
|
|
|
|
if ( event.touches.length == 1 ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouseX = event.touches[ 0 ].pageX - windowHalfX;
|
|
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function animate() {
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
render();
|
|
stats.update();
|
|
|
|
}
|
|
|
|
var delta, time, oldTime;
|
|
|
|
function render() {
|
|
|
|
if ( ! oldTime ) oldTime = new Date().getTime();
|
|
|
|
time = new Date().getTime();
|
|
delta = 0.1 * ( time - oldTime );
|
|
oldTime = time;
|
|
|
|
parent.rotation.y += ( targetRotation - parent.rotation.y ) * 0.05;
|
|
|
|
renderer.clear();
|
|
|
|
if ( postprocessing.enabled ) {
|
|
|
|
composer.render( 0.05 );
|
|
|
|
} else {
|
|
|
|
renderer.render( scene, camera );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|